Cable management system

ABSTRACT

A system manages cables to connect to a device provided in a device chassis. The system includes a cable management boom connected to a top portion of the device chassis, cable management shelves connected to a side portion of the device chassis, and a cable management arm connected to and supported by the cable management shelves. The cable management arm is to retain the cables, pivot through an angle to provide access to the device provided in the device chassis, and route the cables from the device to the cable management boom. The cable management boom is to gather the cables, retain the cables, and route the cables above the device chassis.

BACKGROUND

Installation and management of communication cables requires preciseplacement of the communication cables without damaging them (e.g., viatight bends in the communication cables, inappropriate use of fasteners,inadequate support to the communication cables, etc.). For example,communication cables may be routed over and secured to surfaces (e.g.,which may include sharp bends, sharp objects, etc.), withoutover-bending and damaging the communication cables. Communication cablesmay include telephone cables with copper conductors, coaxial cables,optical cables, etc. A minimum bend radius of a communication cable maybe based on the type of cable, and bending the communication cablebeyond the minimum bend radius can cause damage to the communicationmedium housed within the communication cable.

Installation and management of optical cables may be even more difficultbecause glass fibers used in optical cables are easily damaged when benttoo sharply. The minimum bend radius of an optical cable depends upon avariety of factors, including the signal handled by the optical cable,the style of the optical cable, the size of the optical cable, andequipment to which the optical cable is connected. For example, opticalcables may have a minimum bend radius of between about 0.75 inches toabout 4.0 inches. Damaged optical cables may lead to a reduction in thesignal transmission quality of the optical cables. The greater anoptical cable is bent below its minimum bend radius, the greater thepotential for breaking the fibers contained in the optical cable, andthe shorter the life span of the optical cable.

Furthermore, recent increases in bandwidth requirements fortelecommunications systems has resulted in more densely packed equipmentand optical cables than prior telecommunications systems. Many carriersor other consumers of optical communications equipment have a verylimited floor space in which to place new equipment and optical cables.Thus, it may be even more imperative to provide proper management ofoptical cables (e.g., to be able to bend optical cables around cornersand other obstacles) in order to route the optical cables to and fromoptical communications equipment.

SUMMARY

According to one aspect, a system may manage cables to connect to adevice provided in a device chassis. The system may include a cablemanagement boom connected to a top portion of the device chassis, atleast two cable management shelves connected to a side portion of thedevice chassis, and at least one cable management arm connected to andsupported by the at least two cable management shelves. The at least onecable management arm may retain the cables, may pivot through an angleto provide access to the device provided in the device chassis, and mayroute the cables from the device to the cable management boom. The cablemanagement boom may gather the cables, may retain the cables, and mayroute the cables above the device chassis.

According to another aspect, a cable management system may manage cablesto connect to devices provided in a device chassis. The cable managementsystem may include a cable management boom connected to a top portion ofthe device chassis, an upper cable management shelf connected to a sideupper portion of the device chassis, a middle cable management shelfconnected to a side middle portion of the device chassis, and a lowercable management shelf connected to a side lower portion of the devicechassis. The cable management system may also include first and secondcable management arms connected to and supported by the upper cablemanagement shelf and the middle cable management shelf, and third andfourth cable management arms connected to and supported by the middlecable management shelf and the lower cable management shelf. Each of thecable management arms may operate independently of the other cablemanagement arms, may retain a portion of the cables, may pivot throughan angle to provide access to the devices provided in the devicechassis, and may route the portion of the cables from at least one ofthe devices to the cable management boom. The cable management boom maybundle each portion of the cables exiting each of the cable managementarms, retain each bundled portion of the cables, and route each bundledportion of the cables above the device chassis.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute apart of this specification, illustrate one or more implementationsdescribed herein and, together with the description, explain theseimplementations. In the drawings:

FIGS. 1A and 1B are diagrams illustrating an isometric view and a frontview, respectively, of an exemplary system in which an exemplary cablemanagement system described herein may be implemented;

FIG. 2A is a diagram depicting an isometric view of a cable managementboom of the exemplary cable management system illustrated in FIGS. 1Aand 1B;

FIG. 2B is a diagram illustrating a front view of the cable managementboom depicted in FIG. 2A;

FIG. 3A is a diagram depicting a top view of an upper cable managementshelf of the exemplary cable management system illustrated in FIGS. 1Aand 1B;

FIG. 3B is a diagram illustrating a top view of a middle cablemanagement shelf of the exemplary cable management system depicted inFIGS. 1A and 1B;

FIG. 3C is a diagram depicting a rear view of a lower cable managementshelf of the exemplary cable management system illustrated in FIGS. 1Aand 1B;

FIG. 4 is a diagram illustrating connection of one of the cablemanagement shelves depicted in FIGS. 3A-3C to a rear portion of a devicechassis;

FIG. 5A is a diagram depicting connection of a cable management arm, ofthe exemplary cable management system illustrated in FIGS. 1A and 1B, tothe upper cable management shelf illustrated in FIG. 3A;

FIG. 5B is a diagram illustrating connection of the cable management armdepicted in FIG. 5A to the middle cable management shelf depicted inFIG. 3B;

FIG. 6A is a diagram depicting a front view of a cable management arm ofthe exemplary cable management system illustrated in FIGS. 1A and 1B;

FIG. 6B is a diagram illustrating a partial isometric view of the cablemanagement arm depicted in FIG. 6A; and

FIG. 7 depicts a flowchart of an exemplary process for installing acable management system and routing cables via the cable managementsystem according to implementations described herein.

DETAILED DESCRIPTION

The following detailed description refers to the accompanying drawings.The same reference numbers in different drawings may identify the sameor similar elements. Also, the following detailed description does notlimit the invention.

Systems and/or methods described herein may provide a cable managementsystem that ensures safe routing and attachment of cables (e.g., opticalcables) to a device (e.g., an optical device). For example, in oneimplementation, the cable management system may include a cablemanagement boom connected to a top portion of a device chassis (e.g., anoptical device chassis), and cable management shelves connected to aside (e.g., a rear portion or a front portion) of the device chassis.The cable management shelves may connect to and support multiple cablemanagement arms. Each of the cable management arms may manage a portionof cables to be connected to the device, may operate independently ofthe other cable management arms, and may pivot through an angle (e.g., aninety degree angle) to provide access to a serviceable component (e.g.,housed inside the device chassis) which may reside behind the cablemanagement arms in a normal operating position. In one example, eachcable management arm may manage thirty-two cables in eight groups offour cables each. Each cable management arm may include multiple cableclamps (e.g., where each cable clamp may be actuated by a correspondinglever) that retain cables in specific locations so that the lengths ofthe cables from the device chassis may be of equal distance. Cablesexiting each cable management arm may be routed overhead to the cablemanagement boom, and the cable management boom may gather and retain thecables. The cable management boom may be positioned so the cables maymove appropriately when the cable management arms are pivoted betweentheir normal operating positions and their service positions. From thecable management boom, the cables may be routed directly to overheadcable raceways.

The cable management system described herein may maintain minimum bendradii of cables routed by the cable management system, and may provideadequate support for the cables. The cable management system may providea way to properly route cables away from the device chassis (e.g., afaceplate of the device chassis) by maintaining specific cable lengthand routing requirements that enable movement of the cable managementarms. The moveable cable management arms may permit access toserviceable components (e.g., housed inside the device chassis) locatedbehind the cable management system, without disrupting cables fromadjacent components.

Exemplary Cable Management System Configuration

FIGS. 1A and 1B are diagrams illustrating an isometric view and a frontview, respectively, of an exemplary system 100 in which an exemplarycable management system described herein may be implemented. As shown inFIGS. 1A and 1B, system 100 may include a device chassis 110, cables120, and a cable management system that includes a cable management boom130, cable management shelves 140-1, 140-2, and 140-3 (collectivelyreferred to as “cable management shelves 140” and singularly as “cablemanagement shelf 140”), and cable management arms 150.

Device chassis 110 may include a chassis that houses one or more networkdevices (e.g., gateways, routers, switches, firewalls, network interfacecards (NICs), hubs, bridges, proxy servers, or some other type ofdevices that may process and/or transfer data), one or more computationor communication devices (e.g., personal computers, work stations,server devices, etc.), and/or any other devices capable of communicatingwith one or more cables, such as cables 120. In one implementation,device chassis 110 may house additional components (not shown) dependingupon the function of device chassis 110. Device chassis 110 may be sizedand/or shaped to accommodate the one or more devices and/or componentshoused within device chassis 110, and the size and/or shape of devicechassis 110 may depend on the number, size, and/or shape of the devicesand/or components housed within device chassis 110.

Each of cables 120 may include any cable having a minimum bend radius,an optical cable, a communication cable with metal (e.g., copper)conductors, a coaxial cable, etc. In one exemplary implementation, eachof cables 120 may include a cable capable of communicating with and/orconnecting to the one or more devices and/or components provided indevice chassis 110. In one example, each of cables 120 may include anoptical cable with a minimum bend radius of between about 0.75 inches toabout 4.0 inches. In another example, each of cables 120 may include apower cord, a communication cable, etc., that may provide electricity,electrical signals, optical signals, etc. to one or more devices and/orcomponents housed inside device chassis 110.

Cable management boom 130 may connect to an upper portion of devicechassis 110 via support legs, and may include a comb panel assemblyconnected to the support legs. Cable management boom 130 may routecables 120 to/from overhead cable raceways (not shown) from/to a rearportion of device chassis 110 (e.g., via cable management arms 150 andcable management shelves 140, as shown in FIG. 1B). Cable managementboom 130 may bundle and retain cables 120 that are routed to/from theoverhead cable raceways, and may be positioned (e.g., relative to devicechassis 110) to permit cables 120 to move appropriately (e.g., withoutexceeding minimum bend radii) when cable management arms 150 are pivotedbetween their normal operating positions and their service positions.Cable management boom 130 may be sized and/or shaped to accommodate thenumber of cables 120 utilized in system 100, and the size and/or shapeof cable management boom 130 may depend on the size and/or shape ofdevice chassis 110 and/or cables 120. One or more components of cablemanagement boom 130 may be made from a variety of materials, such asmetals, metal alloys, high-strength plastics, and/or other materialsmeeting Network Equipment Building System (NEBS) reliability andflammability ratings. Further details of cable management boom 130 areprovided below in connection with, for example, FIGS. 2A and 2B.

Each of cable management shelves 140 may connect to a rear portion (orfront portion, depending upon where cables connect to device chassis110) of device chassis 110, as shown in FIG. 1A. Cable managementshelves 140 may connect to and support multiple cable management arms150. For example, as shown in FIG. 1A, an upper cable management shelf140-1 may connect to first ends of two upper cable management arms 150.A middle cable management shelf 140-2 may connect to second ends of thetwo upper cable management arms 150 and may connect to first ends of twolower cable management arms 150. A lower cable management shelf 140-3may connect to second ends of the two lower cable management arms 150.Each cable management shelf 140 may include one or more brackets (e.g.,that connects with an end of one of cable management arms 150) thatpivot through an angle (e.g., a ninety degree angle) to provide accessto a serviceable component (e.g., provided in device chassis 110) whichmay reside behind cable management arms 150 in a normal operatingposition.

Cable management shelves 140 may be sized and/or shaped to accommodatethe number of cables 120 utilized in system 100, and the size and/orshape of cable management shelves 140 may depend on the size and/orshape of device chassis 110 and/or cables 120. One or more components ofeach cable management shelf 140 may be made from a variety of materials,such as metals, metal alloys, high-strength plastics, and/or othermaterials meeting NEBS reliability and flammability ratings. AlthoughFIG. 1A shows three cable management shelves 140, in otherimplementations, more or less than three cable management shelves 140may be utilized in system 100. Further details of cable managementshelves 140 are provided below in connection with, for example, withFIGS. 3A-5B.

Each of cable management arms 150 may include a first end and a secondend. The first end of each cable management arm 150 may connect to oneof cable management shelves 140 and the second end of each cablemanagement arm 150 may connect to another one of cable managementshelves 140. Each of cable management arms 150 may manage a portion ofcables 120 to be connected to devices and/or components housed insidedevice chassis 110, and may operate independently of the other cablemanagement arms 150. Each cable management arm 150 may pivot through anangle (e.g., a ninety degree angle or some other angle) to provideaccess to a serviceable component (e.g., provided in device chassis 110)which may reside behind cable management arms 150 in a normal operatingposition. In one exemplary implementation, each cable management arm 150may manage thirty-two cables 120 in eight groups of four cables 120each. In other exemplary implementations, each cable management arm 150may manage more or less cables 120 and/or grouping of cables 120. Eachcable management arm 150 may include multiple cable clamps (e.g., whereeach cable clamp may be actuated by a corresponding lever) for retainingcables 120 in specific locations so that the lengths of cables 120 fromdevice chassis 110 may be of equal distance.

Cable management arms 150 may be sized and/or shaped to accommodate thenumber of cables 120 utilized in system 100, and the size and/or shapeof cable management arms 150 may depend on the size and/or shape ofdevice chassis 110 and/or cables 120. One or more components of eachcable management arm 150 may be made from a variety of materials, suchas metals, metal alloys, high-strength plastics, and/or other materialsmeeting NEBS reliability and flammability ratings. Although FIG. 1Ashows four cable management arms 150, in other implementations, more orless than four cable management arms 150 may be utilized in system 100.Further details of cable management arms 150 are provided below inconnection with, for example, FIGS. 5A-6B.

As further shown in FIG. 1B, one or more connectors 160 attached tocables 120 may communicate (e.g., connect) with one or more connectorreceivers 170 associated with devices and/or components housed insidedevice chassis 110. Each of connectors 160 may include a power cordconnector (e.g., a power supply connector, a plug, etc.); acommunication cable connector (e.g., a Universal Serial Bus (USB)connector, an eight position, eight conductors (8P8C or “RJ45”)connector, a nine-pin D-shell (DE-9) connector, etc.); an opticalconnector (e.g., a standard connector (SC), a ferrule connector (FC), asub miniature A (SMA) connector, etc.); a telephone connector; etc. Eachof connector receivers 170 may include a mechanism that is sized,shaped, and/or configured to receive a corresponding one of connectors160. For example, if connector 160 is an optical connector, connectorreceiver 170 may be sized and shaped to receive the size and shape ofthe optical connector, and may include optical components that maycommunicate with corresponding optical components provided in connector160. One or more of connector receivers 170 may attach one of connectors160 to devices and/or components housed inside of device chassis 110,and may enable connectors 160 to communicate (e.g., electricallycommunicate, optically communicate, etc.) with the devices and/orcomponents.

Although FIGS. 1A and 1B show exemplary components of system 100, inother implementations, system 100 may contain fewer, different,differently arranged, and/or additional components than depicted inFIGS. 1A and 1B. In still other implementations, one or more componentsof system 100 may perform one or more other tasks described as beingperformed by one or more other components of system 100.

Exemplary Cable Management Boom Configuration

FIGS. 2A and 2B are diagrams depicting an isometric view and a frontview, respectively, of cable management boom 130. As shown in FIG. 2A,cable management boom 130 may include a comb panel assembly 200, a firstsupport leg 210, and a second support leg 220. As further shown in FIG.2A, comb panel assembly 200 may connect 230 (e.g., via connectors, suchas screws, bolts, etc.) to upper ends of support legs 210 and 220, andlower ends of support legs 210 and 220 may connect 240 (e.g., viaconnectors, such as screws, bolts, etc.) to an upper portion of devicechassis 110. Support legs 210 and 220 may be sized to position combpanel assembly 200 adjacent to cable raceways (not shown) providedoverhead of device chassis 110. For example, the size of support legs210 and 220 may depend on the height of device chassis 110 and/or howclose the cable raceways are provided to a top of device chassis 110.

As shown in FIG. 2B, comb panel assembly 200 may include a base portion202, one or more combs 204, and a guide portion 206. Combs 204 and guideportion 206 may connect to (or be integrally formed with) and extendaway from base portion 202 (e.g., as best seen in FIG. 2A). Support legs210 and 220 may connect to base portion 202 via connectors, such asscrews, bolts, etc. Combs 204 may bundle and retain cables 120 that arerouted to/from the overhead cable raceways, without bending cables 120beyond their minimum bend radii. For example, cables 120 may be providedand/or retained between two or more combs 204. In another example, themiddle six combs 204 may be used to guide cables 120 to the upper cablemanagement arms 150 (e.g., as shown in FIG. 1B), and the outer eightcombs 204 may be used to guide cables 120 to the lower cable managementarms 150. In one exemplary implementation, each of combs 204 may besubstantially pear-shaped, as shown in FIGS. 2A and 2B. In otherimplementations, each of combs 204 may be another shape, such ascircular, square, rectangular, etc. Although FIGS. 2A and 2B show tencombs 204 for comb panel assembly 200, in other implementations, more orless than ten combs 204 may be provided with comb panel assembly 200.

Guide portion 206 may include one or more structures (e.g., walls) thatguide cables 120 between combs 204. Base portion 202, combs 204, and/orguide portion 206 may be sized and/or shaped to accommodate the numberof cables 120 utilized in system 100, and the size and/or shape of baseportion 202, combs 204, and/or guide portion 206 may depend on the sizeand/or shape of device chassis 110 and/or cables 120.

Although FIGS. 2A and 2B show exemplary components of cable managementboom 130, in other implementations, cable management boom 130 maycontain fewer, different, differently arranged, and/or additionalcomponents than depicted in FIGS. 2A and 2B. In still otherimplementations, one or more components of cable management boom 130 mayperform one or more other tasks described as being performed by one ormore other components of cable management boom 130.

Exemplary Cable Management Shelf Configuration

FIG. 3A is a diagram depicting a top view of upper cable managementshelf 140-1 (e.g., provided at an upper portion of device chassis 110(FIG. 1A)). As shown, upper cable management shelf 140-1 may includepivoting brackets 300-1, a shelf body 310-1, mounting rods 320-1, and akeying pin 330-1.

Each of pivoting brackets 300-1 may pivotally connect to and extend awayfrom shelf body 310-1. Each pivoting bracket 300-1 may connect with anupper end of one of the upper cable management arms 150, and may pivotthrough an angle (e.g., a ninety degree angle or some other angle) toprovide access to a serviceable component (e.g., provided in devicechassis 110) which may reside behind cable management arms 150 in anormal operating position. Each pivoting bracket 300-1 may include alocking mechanism that locks pivoting bracket 300-1 in a “normal”position or in a “service” position. Pivoting bracket 300-1 furthest tothe right in FIG. 3A may be pivoted to and locked in the normalposition, and pivoting bracket 300-1 furthest to the left in FIG. 3A maybe pivoted to and locked in the service position. Pivoting brackets300-1 may be sized and/or shaped to accommodate the number of cables 120utilized in system 100, and the size and/or shape of pivoting brackets300-1 may depend on the size and/or shape of device chassis 110 and/orcables 120.

Shelf body 310-1 may include a substantially flat, rectangular surfaceand mechanisms (e.g., pivots, not shown) that pivotally connect topivoting brackets 300-1. Shelf body 310-1 may be sized and/or shaped toaccommodate the number of cables 120 utilized in system 100, and thesize and/or shape of shelf body 310-1 may depend on the size and/orshape of device chassis 110 and/or cables 120. For example, shelf body310-1 may be sized to space cable management arms 150 (e.g., connectedto pivoting brackets 300-1) away from device chassis 110 so that cables120 (e.g., guided by cable management arms 150) do not exceed theirminimum bend radii (e.g., when pivoting brackets 300-1 are in the normalposition or the service position).

Mounting rods 320-1 may connect to and extend away from shelf body310-1, and may be substantially cylindrical in shape. Mounting rods320-1 may be sized and/or shaped to connect cable management shelf 140-1to a rear portion of device chassis 110, as described below inconnection with FIG. 4. For example, mounting rods 320-1 may includelengths and may be made from a material that ensure that cablemanagement shelf 140-1 remains connected to device chassis 110 and isable to support cables 120 and cable management arms 150 associated withcable management shelf 140-1.

Keying pin 330-1 may include a substantially cylindrical-shaped pin thatattaches to a particular location of shelf body 310-1 to enable cablemanagement shelf 140-1 to be identified, as described below inconnection with FIG. 3C. For example, shelf body 310-1 may include threekeying pin locations (or positions) (e.g., keying pin position “A” forupper cable management shelf 140-1, keying pin position “B” for middlecable management shelf 140-2, and keying pin position “C” for lowercable management shelf 140-3). Keying pin 330-1 may also ensure thatcable management shelf 140-1 is connected to an appropriate location ofdevice chassis 110. For example, if keying pin 330-1 is provided inkeying pin position “A” (e.g., indicating that keying pin 330-1 isassociated with upper cable management shelf 140-1), cable managementshelf 140-1 (e.g., via keying pin 330-1) may align with and be connectedto the upper portion of device chassis 110 (e.g., the upper portion ofdevice chassis 110 may include a opening that aligns with and receiveskeying pin 330-1).

FIG. 3B is a diagram illustrating a top view of middle cable managementshelf 140-2 (e.g., provided at a middle portion of device chassis 110(FIG. 1A)). As shown, middle cable management shelf 140-2 may include ashelf body 310-2, mounting rods 320-2, a keying pin 330-2, and pivotingbrackets 340-2. Shelf body 310-2, mounting rods 320-2, and keying pin330-2 may include the features described above for shelf body 310-1,mounting rods 320-1, and keying pin 330-1, respectively (FIG. 3A).However, keying pin 330-2 may be provided in keying pin position “B,”which may indicate that keying pin 330-2 is associated with middle cablemanagement shelf 140-2.

Each of pivoting brackets 340-2 may pivotally connect to and extend awayfrom shelf body 310-1. Each pivoting bracket 340-2 may connect with alower end of one of the upper cable management arms 150, and may pivotthrough an angle (e.g., a ninety degree angle or some other angle) toprovide access to a serviceable component (e.g., provided in devicechassis 110). Each pivoting bracket 340-2 may include a lockingmechanism that locks pivoting bracket 340-2 in the normal position or inthe service position. Pivoting bracket 340-2 furthest to the right inFIG. 3B may be pivoted to and locked in the normal position, andpivoting bracket 340-2 furthest to the left in FIG. 3B may be pivoted toand locked in the service position. Pivoting brackets 340-2 may be sizedand/or shaped to accommodate the number of cables 120 utilized in system100, and the size and/or shape of pivoting brackets 340-2 may depend onthe size and/or shape of device chassis 110 and/or cables 120.

Although not shown in FIG. 3B, a corresponding pivoting bracket 300-2(e.g., that includes the features described above for pivoting bracket300-1) may be provided below each pivoting bracket 340-2. Pivotingbrackets 300-2 may connect to upper ends of the lower cable managementarms 150, and pivoting brackets 340-2 may connect to lower ends of theupper cable management arms 150.

As further shown in FIG. 3B, each pivoting bracket 340-2 (e.g., and eachpivoting bracket associated with cable management shelves 140-1 and140-3) may include a release tab 350-2. If release tab 350-2 isdepressed (e.g., by a person or installer installing cables 120),pivoting bracket 340-2 may freely pivot relative to shelf body 310-2 sothat pivoting bracket 340-2 may be manipulated between the normalposition and the service position. If release tab 350-2 is notdepressed, pivoting bracket 340-2 may be locked in the normal positionor the service position.

FIG. 3C is a diagram depicting a rear view of lower cable managementshelf 140-3 (e.g., provided at a lower portion of device chassis 110(FIG. 1A)). As shown, lower cable management shelf 140-3 may include ashelf body 310-3, mounting rods 320-3, pivoting brackets 340-3, andkeying pin openings 360-A, 360-B, and 360-C. Shelf body 310-3, mountingrods 320-3, and pivoting brackets 340-3 may include the featuresdescribed above for shelf body 310-1, mounting rods 320-1, and pivotingbrackets 340-2, respectively (FIGS. 3A and 3B).

Keying pin opening 360-A may correspond to keying pin position “A” forupper cable management shelf 140-1. Keying pin opening 360-B maycorrespond to keying pin position “B” for middle cable management shelf140-2. Keying pin opening 360-C may correspond to keying pin position“C” for lower cable management shelf 140-3. A keying pin 330-3 (notshown) may be provided in one of keying pin openings 360-A, 360-B, or360-C to provide an indication of which cable management shelf 140 isassociated with keying pin 330-3. For example, keying pin 330-3 may beprovided in keying pin position 360-C, which may indicate that keyingpin 330-3 is associated with lower cable management shelf 140-3.

FIG. 4 is a diagram 400 illustrating connection of one of cablemanagement shelves 140 (e.g., where the pivoting brackets have beenomitted for clarity) to a rear portion of device chassis 110. As shown,device chassis 110 may include mounting rod holes 410 and a keying pinhole 420. Mounting rod holes 410 may be sized and/or shaped to receiveand retain mounting rods 320 within device chassis 110. Keying pin hole420 may be sized and/or shaped to receive keying pin 330. As furthershown in FIG. 4, in order to connect cable management shelf 140 todevice chassis 110, mounting rods 320 and keying pin 330 may be alignedwith mounting rod holes 410 and keying pin hole 420, respectively, andcable management shelf 140 may be moved in a direction 430 toward devicechassis 110. When mounting rods 320 are provided fully within mountingrod holes 410, captive screws 440 (e.g., provided on the left and rightsides of each cable management shelf 140) may be tightened to securelyconnect cable management shelf 140 to device chassis 110. This processmay be repeated for each of cable management shelves 140.

Once cable management shelves 140 are connected to device chassis 110,cable management arms 150 may be connected to cable management shelves140. FIG. 5A is a diagram 500 depicting connection of an upper, rightcable management arm 150 (FIG. 1B) to upper cable management shelf140-1. As shown, pivoting bracket 300-1 of cable management shelf 140-1may be provided in the service position, and cable management arm 150may be aligned with pivoting bracket 300-1. When cable management arm150 is aligned with pivoting bracket 300-1, one or more connectors 510(e.g., screw, bolts, etc.) may be used to connect pivoting bracket 300-1(e.g., cable management shelf 140-1) to cable management arm 150.

FIG. 5B is a diagram illustrating connection of the upper, right cablemanagement arm 150 to middle cable management shelf 140-2. As shown,pivoting bracket 300-2 of cable management shelf 140-2 may be providedin the service position, and cable management arm 150 may be alignedwith pivoting bracket 300-2. When cable management arm 150 is alignedwith pivoting bracket 300-2, one or more connectors 510 (e.g., screw,bolts, etc.) may be used to connect pivoting bracket 300-2 (e.g., cablemanagement shelf 140-2) to cable management arm 150. The connectionprocess depicted in FIGS. 5A and 5B may be repeated for each of cablemanagement arms 150.

Although FIGS. 3A-5B show exemplary components of cable managementshelves 140, in other implementations, cable management shelves 140 maycontain fewer, different, differently arranged, and/or additionalcomponents than depicted in FIGS. 3A-5B. In still other implementations,one or more components of cable management shelves 140 may perform oneor more other tasks described as being performed by one or more othercomponents of cable management shelves 140.

Exemplary Cable Management Arm Configuration

FIGS. 6A and 6B are diagrams depicting a front view and a partialisometric view, respectively, of cable management arm 150. As shown inFIG. 6A, cable management arm 150 may include longer guides 600, shorterguides 610, multiple levers 620-1, . . . , 620-8 (collectively referredto as “levers 620” and singularly as “lever 620”), and multiple cableclamps 630-1, . . . , 630-8 (collectively referred to as “cable clamps630” and singularly as “cable clamp 630”).

Each of longer guides 600 may include a structure (e.g., a wall, aplanar structure, etc.) that guides cables 120 along cable managementarm 150 and to one of cable clamps 630. For example, as shown in FIG.6A, the two left-most longer guides 600 may guide cables 120 to cableclamps 630-7 and 630-8, the two middle longer guides 600 may guidecables 120 to cable clamps 630-5 and 630-6, and the two right-mostlonger guides 600 may guide cables 120 to cable clamps 630-3 and 630-4.Although FIG. 6A shows four longer guides 600, in other implementations,more or less than four longer guides 600 may be provided with cablemanagement arm 150. Longer guides 600 may be sized and/or shaped toaccommodate the number of cables 120 utilized in system 100, and thesize and/or shape of longer guides 600 may depend on the size and/orshape of device chassis 110 and/or cables 120. In one exemplaryimplementation, longer guides 600 may be shaped so that cables 120(e.g., guided by longer guides 600) do not exceed their minimum bendradii (e.g., via shorter guides integrally formed at bottom portions oflonger guides 600).

Each of shorter guides 610 may be shorter in length than each of longerguides 600, and may include a structure (e.g., a wall, a planarstructure, etc.) that guides cables 120 along cable management arm 150and to one of cable clamps 630. For example, as shown in FIG. 6A (e.g.,from the top down), the top-most shorter guide 610 may guide cables 120to cable clamp 630-1, the second top-most shorter guide 610 may guidecables 120 to cable clamp 630-2, the right-most longer guide 600 mayguide cables 120 to cable clamp 630-3, the third top-most shorter guide610 may guide cables to cable clamp 630-4, the second right-most longerguide 600 may guide cables 120 to cable clamp 630-5, the fourth top-mostshorter guide 610 may guide cables to cable clamp 630-6, the thirdright-most longer guide 600 may guide cables 120 to cable clamp 630-7,and the fifth top-most shorter guide 610 may guide cables 120 to cableclamp 630-8. Although FIG. 6A shows five shorter guides 610, in otherimplementations, more or less than five shorter guides 610 may beprovided with cable management arm 150. Shorter guides 610 may be sizedand/or shaped to accommodate the number of cables 120 utilized in system100, and the size and/or shape of shorter guides 610 may depend on thesize and/or shape of device chassis 110 and/or cables 120. In oneexemplary implementation, shorter guides 610 may be shaped so thatcables 120 (e.g., guided by shorter guides 610) do not exceed theirminimum bend radii.

Each of levers 620 may include mechanisms (e.g., a cam attached to apivot) that engages a corresponding one of cable clamps 630 and causesthe corresponding cable clamp 630 to move up or down. Lever 620 andcable clamp 630 may be in a “locked” position when lever 620 causescable clamp 630 to move up (e.g., towards one of longer guides 600 orshorter guides 610). Lever 620 and cable clamp 630 may be in a“released” position when lever 620 causes cable clamp 630 to move down(e.g., away from one of longer guides 600 or shorter guides 610). Whencables 120 are to be installed in cable management arm 150, levers 620and cable clamps 630 may be provided in their released positions.Further details of the interactions of levers 620 and cable clamps 630are provided below in connection with, for example, FIG. 6B. Levers 620may be sized and/or shaped so that they may be easily manipulated by aperson(s) installing cables 120 in system 100.

Each of cable clamps 630 may include mechanisms (e.g., cable troughs andcable guides) that receive cables 120, and retain cables 120 withincable management arm 150. Each cable clamp 630 may be actuated by acorresponding one of levers 620 to provide each cable clamp 630 in thelocked position or the released position, as described above. In oneexample, each cable clamp 630 may retain cables 120 in specificlocations so that the lengths of cables 120 from device chassis 110 maybe of equal distance. In one exemplary implementation, each cable clamp630 may retain four cables 120 when provided in the locked position.

FIG. 6B provides further details of levers 620 and cable clamps 630. Asshown in FIG. 6B, each of levers 620 (e.g., with reference to firstlever 620-1) may include a pivot 622-1 connected to a cam (not shown)that engages a corresponding one of cable clamps 630 (e.g., cable clamp630-1) and causes the corresponding cable clamp 630 to move up or down.Pivot 622-1 may enable each lever 620 to pivot from the locked positionto the released position and vice versa. For example, first lever 620-1may be in the locked position (e.g., cable clamp 630-1 may be moved uptoward one of shorter guides 610), and second lever 620-2 may be in thereleased position (e.g., cable clamp 630-2 may be moved down away fromone of shorter guides 610).

As further shown in FIG. 6B, each of cable clamps 630 (e.g., withreference to second cable clamp 630-2) may include a pivot 632-2, a bodyportion 634-2, four cable troughs 636-2, and three cable guides 638-2.Pivot 632-2 may enable cable clamp 630-2 to move up or down (e.g., fromthe locked position to the released position in response to actuation oflever 620-2). Body portion 634-2 may include a substantially flat,rectangular surface and may pivotally connect to pivot 632-2. Cabletroughs 636-2 and cable guides 638-2 may be integrally formed with bodyportion 634-2 and may be sized and/or shaped to define spaces forreceiving and retaining cables 120 (e.g., four cables 120). In oneexemplary implementation, cable troughs 636-2 may be labeled (e.g., “A,”“B,” “C,” and “D”) to correspond to each of the four cables 120. Whencables 120 are installed in cable management arm 150, cable clamp 620-2may be in the released position (e.g., as shown in FIG. 6B), and cables120 may be provided in one or more of cable troughs 636-2. Once cables120 are provided in cable troughs 636-2, lever 620-2 may be rotated tothe locked position, cable clamp 630-2 may move up toward one of shorterguides 610, and cables 120 may be retained in between cable clamp 630-2and one of shorter guides 610.

Cables 120 may be installed and routed between device chassis 110 andthe cable management system (e.g., cable management boom 130, cablemanagement arms 150, and cable management shelves 140) in a particularorder. For example, cables 120 may be loaded in one cable management arm150 at a time and may be installed from top to bottom on each cablemanagement arm 150. If cables 120 are to be installed in the right sideof device chassis 110, the installer may begin with connecting a cable120 near the center of device chassis 110 and may work outwards to acable 120 to be connected near the right side of device chassis 110. Ifcables 120 are to be installed in the left side of device chassis 110,the installer may begin with connecting a cable 120 near the center ofdevice chassis 110 and may work outwards to a cable 120 to be connectednear the left side of device chassis 110. In other words, cables 120 maybe installed from the inside out of device chassis 110.

In another example, the installer may connect a cable 120 (e.g., labeledcable “A”) to a component housed inside of device chassis 110, and mayroute cable “A” into a corresponding cable trough 636-2 (e.g., a cabletrough labeled “A”) of cable management arm 150 (FIG. 6B). The installermay route cable “A” through one or more of longer guides 600 and/orshorter guides 610 of cable management arm 150 (FIG. 6B) and into combpanel assembly 200 of cable management boom 130 (FIG. 2A). Thisinstallation process may be repeated for cables 120 labeled “B,” “C,”and “D.” Once all four cables 120 are in position in cable troughs 636-2of cable clamp 630-2, the installer may rotate lever 620-2 to move cableclamp 630-2 into the locked position. The installer may not pull cables120 tight between the component housed inside of device chassis 110 andcable management arm 150 in order to ensure provision of large, smoothbend radii for cables 120. Provision of large, smooth bend radii forcables 120 may enable proper cable management arm 150 movement whenpivoted into the service position, without exceeding the minimum bendradii of cables 120. This installation process may be repeated until allof cables 120 for a particular cable management arm 150 are routed, andmay be performed for any remaining cable management arms 150.

Cables 120 exiting a particular cable management arm 150 and provided tocomb panel assembly 200 of cable management boom 130 may be secured in abundle at one or more lengths of cables 120 using one or more bundlingmechanisms (e.g., tie wraps, Velcro straps, etc.). When cables 120 arebundled as they exit each cable management arm 150, each group of cables120 may be individually bundled (e.g., bundles of cables 120 from upperand lower cable management arms 150 may not be strapped together so thatthe upper and lower cable management arms 150 may move independentlybetween the service and normal positions). After the bundles of cables120 exit the top of comb panel assembly 200, the installer may strap thebundles of cables 120 together as appropriate.

Although FIGS. 6A and 6B show exemplary components of cable managementarm 150, in other implementations, cable management arm 150 may containfewer, different, differently arranged, and/or additional componentsthan depicted in FIGS. 6A and 6B. In still other implementations, one ormore components of cable management arm 150 may perform one or moreother tasks described as being performed by one or more other componentsof cable management arm 150.

Exemplary Process

FIG. 7 depicts a flowchart of an exemplary process 700 for installing acable management system and routing cables via the cable managementsystem according to implementations described herein. As shown in FIG.7, process 700 may include connecting a cable management boom to a topportion of a device chassis (block 710). For example, in implementationsdescribed above in connection with FIG. 2A, cable management boom 130may include comb panel assembly 200, first support leg 210, and secondsupport leg 220. Comb panel assembly 200 may connect 230 (e.g., viaconnectors, such as screws, bolts, etc.) to upper ends of support legs210 and 220, and lower ends of support legs 210 and 220 may connect 240(e.g., via connectors, such as screws, bolts, etc.) to an upper portionof device chassis 110. Support legs 210 and 220 may be sized to positioncomb panel assembly 200 adjacent to cable raceways (not shown) providedoverhead of device chassis 110. For example, the size of support legs210 and 220 may depend on the height of device chassis 110 and/or howclose the cable raceways are provided to a top of device chassis 110.

As further shown in FIG. 7, process 700 may include attaching a firstcable management shelf to a top rear portion of the device chassis(block 720), attaching a second cable management shelf to a middle rearportion of the device chassis (block 730), and attaching a third cablemanagement shelf to a bottom rear portion of the device chassis (block740). For example, in implementations described above in connection withFIG. 4, device chassis 110 may include mounting rod holes 410 and keyingpin hole 420. Mounting rod holes 410 may be sized and/or shaped toreceive and retain mounting rods 320 within device chassis 110. Keyingpin hole 420 may be sized and/or shaped to receive keying pin 330. Inorder to connect cable management shelf 140 to device chassis 110,mounting rods 320 and keying pin 330 may be aligned with mounting rodholes 410 and keying pin hole 420, respectively, and cable managementshelf 140 may be moved in a direction 430 toward device chassis 110.When mounting rods 320 are provided fully within mounting rod holes 410,captive screws 440 (e.g., provided on the left and right sides of eachcable management shelf 140) may be tightened to securely connect cablemanagement shelf 140 to device chassis 110. This process may be repeatedfor each of cable management shelves 140.

Returning to FIG. 7, first and second cable management arms may beconnected to the first and second cable management shelves (block 750),and third and fourth cable management arms may be connected to thesecond and third cable management shelves (block 760). For example, inimplementations described above in connection with FIGS. 5A and 5B, oncecable management shelves 140 are connected to device chassis 110, cablemanagement arms 150 may be connected to cable management shelves 140.Pivoting bracket 300-1 of cable management shelf 140-1 may be providedin the service position, and cable management arm 150 may be alignedwith pivoting bracket 300-1. When cable management arm 150 is alignedwith pivoting bracket 300-1, one or more connectors 510 (e.g., screw,bolts, etc.) may be used to connect pivoting bracket 300-1 (e.g., cablemanagement shelf 140-1) to cable management arm 150. Pivoting bracket300-2 of cable management shelf 140-2 may be provided in the serviceposition, and cable management arm 150 may be aligned with pivotingbracket 300-2. When cable management arm 150 is aligned with pivotingbracket 300-2, one or more connectors 510 (e.g., screw, bolts, etc.) maybe used to connect pivoting bracket 300-2 (e.g., cable management shelf140-2) to cable management arm 150. The connection process may berepeated for each of cable management arms 150.

As further shown in FIG. 7, process 700 may include routing one or morecables, via the cable management boom and the first-fourth cablemanagement arms, for connection with a device housed inside the devicechassis (block 770). For example, in implementations described above inconnection with FIGS. 6A and 6B, cables 120 may be installed and routedbetween device chassis 110 and the cable management system (e.g., cablemanagement boom 130, cable management arms 150, and cable managementshelves 140) in a particular order. Cables 120 may be loaded in onecable management arm 150 at a time and may be installed from top tobottom on each cable management arm 150. Cables 120 may be installedfrom the inside out of device chassis 110. The installer may connect acable 120 (e.g., labeled cable “A”) to a component housed inside ofdevice chassis 110, and may route cable “A” into a corresponding cabletrough 636-2 (e.g., a cable trough labeled “A”) of cable management arm150. The installer may route cable “A” through one or more of longerguides 600 and/or shorter guides 610 of cable management arm 150 andinto comb panel assembly 200 of cable management boom 130. Thisinstallation process may be repeated for cables 120 labeled “B,” “C,”and “D.” Once all four cables 120 are in position in cable troughs 636-2of cable clamp 630-2, the installer may rotate lever 620-2 to move cableclamp 630-2 into the locked position. This installation process may berepeated until all of cables 120 for a particular cable management arm150 are routed, and may be performed for any remaining cable managementarms 150.

CONCLUSION

Systems and/or methods described herein may provide a cable managementsystem that ensures safe routing and attachment of cables to a device.For example, in one implementation, the cable management system mayinclude a cable management boom connected to a top portion of a devicechassis, and cable management shelves connected to a rear portion of thedevice chassis. The cable management shelves may connect to and supportmultiple cable management arms. Each of the cable management arms maymanage a portion of cables to be connected to the device, may operateindependently of the other cable management arms, and may pivot throughan angle to provide access to a serviceable component (e.g., housedinside the device chassis) which may reside behind the cable managementarm in a normal operating position. Cables exiting each cable managementarm may be routed overhead to the cable management boom, and the cablemanagement boom may gather and retain the cables. From the cablemanagement boom, the cables may be routed directly to overhead cableraceways.

The foregoing description provides illustration and description, but isnot intended to be exhaustive or to limit the embodiments to the preciseform disclosed. Modifications and variations are possible in light ofthe above teachings or may be acquired from practice of the invention.For example, while a series of blocks has been described with regard tothe flowcharts of FIG. 7, the order of the blocks may differ in otherimplementations. Further, non-dependent blocks may be performed inparallel.

Even though particular combinations of features are recited in theclaims and/or disclosed in the specification, these combinations are notintended to limit the invention. In fact, many of these features may becombined in ways not specifically recited in the claims and/or disclosedin the specification.

No element, act, or instruction used in the present application shouldbe construed as critical or essential to the invention unless explicitlydescribed as such. Also, as used herein, the article “a” is intended toinclude one or more items. Where only one item is intended, the term“one” or similar language is used. Further, the phrase “based on” isintended to mean “based, at least in part, on” unless explicitly statedotherwise.

1. A system comprising: a cable management boom connected to a topportion of a device chassis, the cable management boom comprising:support legs connected to the top portion of the device chassis, and acomb panel assembly connected to the support legs; at least two cablemanagement shelves connected to a side portion of the device chassis;and at least one cable management arm connected to and supported by theat least two cable management shelves, the at least one cable managementarm being to: retain cables, pivot through an angle to provide access toa device provided in the device chassis, and route the cables from thedevice to the cable management boom, the cable management boom being to:gather the cables, retain the cables, and route the cables above thedevice chassis, and the comb panel assembly being to: gather the cables,retain the cables, and route the cables above the device chassis.
 2. Thesystem of claim 1, where the comb panel assembly comprises: a baseportion; a plurality of combs connected to and extending away from thebase portion; and a guide portion connected to and extending away fromthe base portion, the plurality of combs and the guide portioncommunicating with each other to gather, retain, and route the cablesabove the device chassis.
 3. The system of claim 1, where each cablemanagement shelf of the at least two cable management shelves comprises:a shelf body; and at least one pivoting bracket pivotally connected toand extending away from the shelf body, the at least one pivotingbracket, connecting to an end of the at least one cable management armand enabling the at least one cable management arm to pivot through anangle to provide access to the device provided in the device chassis. 4.The system of claim 3, where each cable management shelf of the at leasttwo cable management shelves further comprises: mounting rods that arereceived in openings provided in the device chassis in order to connecteach cable management shelf to the device chassis; and a keying pin thatidentifies each cable management shelf and ensures that each cablemanagement shelf is connected at a correct location of the devicechassis.
 5. The system of claim 1, where the at least one cablemanagement arm comprises: a cable clamp; a lever that actuates the cableclamp to cause the cable clamp to move; a longer guide; and a shorterguide, the shorter guide communicating with the longer guide to providea route for the cables to the cable clamp.
 6. A cable management systemfor managing cables to connect to devices provided in a device chassis,the cable management system comprising: a cable management boomconnectable to a top portion of the device chassis; an upper cablemanagement shelf connectable to a side upper portion of the devicechassis; a middle cable management shelf connectable to a side middleportion of the device chassis; a lower cable management shelfconnectable to a side lower portion of the device chassis; a first cablemanagement arm and a second cable management arm connectable to andsupported by the upper cable management shelf and the middle cablemanagement shelf; and a third cable management arm and a fourth cablemanagement arms arm connectable to and supported by the middle cablemanagement shelf and the lower cable management shelf, each of the firstcable management arm, the second cable management arm the third cablemanagement arm, and fourth cable management arms being to: operateindependently of the other cable management arms; retain a portion ofthe cables, pivot through an angle to provide access to the devicesprovided in the device chassis, and route the portion of the cables fromat least one of the devices to the cable management boom, and the cablemanagement boom being to: bundle each portion of the cables exiting eachof the first and second cable management arms and the third and fourthcable management arms, retain each bundled portion of the cables, androute each bundled portion of the cables above the device chassis. 7.The cable management system of claim 6, where the cable management boomcomprises: two support legs connected to the top portion of the devicechassis; and a comb panel assembly connected to the two support legs,the comb panel assembly being to: bundle each portion of the cablesexiting each of the first cable management arm, the second cablemanagement arms arm, the third cable management arm, and fourth cablemanagement arms, retain each bundled portion of the cables, and routeeach bundled portion of the cables above the device chassis.
 8. Thecable management system of claim 7, where the comb panel assemblycomprises: a base portion; a plurality of combs connected to andextending away from the base portion; and a guide portion connected toand extending away from the base portion, where a first portion of theplurality of combs communicate with each other to bundle, retain, androute the portion of the cables exiting the first cable management arm,where a second portion of the plurality of combs communicate with eachother to bundle, retain, and route the portion of the cables exiting thesecond cable management arm, where a third portion of the plurality ofcombs communicate with each other to bundle, retain, and route theportion of the cables exiting the third cable management arm, and wherea fourth portion of the plurality of combs communicate with each otherto bundle, retain, and route the portion of the cables exiting thefourth cable management arm.
 9. The cable management system of claim 6,where the upper cable management shelf comprises: a shelf body; a firstbracket pivotally connected to and extending away from the shelf body,the first bracket connecting to an upper end of the first cablemanagement arm and enabling the first cable management arm to pivotthrough an angle to provide access to the devices provided in the devicechassis; a second bracket pivotally connected to and extending away fromthe shelf body, where the second bracket being spaced from the firstbracket, connecting to an upper end of the second cable management arm,and enabling the second cable management arm to pivot through an angleto provide access to the devices provided in the device chassis;mounting rods that are received in openings provided in the devicechassis in order to connect the upper cable management shelf to thedevice chassis; and a keying pin that identifies the upper cablemanagement shelf and ensures that the upper cable management shelf isconnected at the side upper portion of the device chassis.
 10. The cablemanagement system of claim 6, where the middle cable management shelfcomprises: a shelf body; a first bracket pivotally connected to andextending away from the shelf body, the first bracket connecting to alower end of the first cable management arm and enabling the first cablemanagement arm to pivot through an angle to provide access to thedevices provided in the device chassis; a second bracket pivotallyconnected to and extending away from the shelf body, the second bracketbeing spaced from the first bracket, connecting to a lower end of thesecond cable management arm, and enabling the second cable managementarm to pivot through an angle to provide access to the devices providedin the device chassis; a third bracket pivotally connected to andextending away from the shelf body, the third bracket being providedbelow the first bracket, connecting to an upper end of the third cablemanagement arm, and enabling the third cable management arm to pivotthrough an angle to provide access to the devices provided in the devicechassis; a fourth bracket pivotally connected to and extending away fromthe shelf body, the fourth bracket being provided below the secondbracket, connecting to an upper end of the fourth cable management arm,and enabling the fourth cable management arm to pivot through an angleto provide access to the devices provided in the device chassis;mounting rods that are received in openings provided in the devicechassis in order to connect the middle cable management shelf to thedevice chassis; and a keying pin that identifies the middle cablemanagement shelf and ensures that the middle cable management shelf isconnected at the side middle portion of the device chassis.
 11. Thecable management system of claim 6, where the lower cable managementshelf comprises: a shelf body; a first bracket pivotally connected toand extending away from the shelf body, the first bracket connecting toa lower end of the third cable management arm and enabling the thirdcable management arm to pivot through an angle to provide access to thedevices provided in the device chassis; a second bracket pivotallyconnected to and extending away from the shelf body, the second bracketbeing spaced from the first bracket, connecting to a lower end of thefourth cable management arm, and enabling the fourth cable managementarm to pivot through an angle to provide access to the devices providedin the device chassis; mounting rods that are received in openingsprovided in the device chassis in order to connect the lower cablemanagement shelf to the device chassis; and a keying pin that identifiesthe lower cable management shelf and ensures that the lower cablemanagement shelf is connected at the side lower portion of the devicechassis.
 12. The cable management system of claim 6, where the firstcable management arms comprises: a plurality of cable clamps; aplurality of levers, each of the plurality of levers actuating acorresponding one of the plurality of cable clamps to cause thecorresponding one of the plurality of cable clamps to move; a pluralityof longer guides; and a plurality of shorter guides, the plurality ofshorter guides communicating with each other and the plurality of longerguides to provide routes for the portion of the cables to the pluralityof cable clamps.
 13. The cable management system of claim 12, where eachof the plurality of cable clamps is to receive four cables, and whereeach of the plurality of cable clamps is to retain the four cablesagainst a corresponding one of the plurality of shorter guides.
 14. Thecable management system of claim 12, where the plurality of longerguides and the plurality of shorter guides provide routes for theportion of the cables that do not exceed minimum bend radii of theportion of the cables.
 15. The cable management system of claim 12,where each of the plurality of levers comprises: a cam; and a pivotattached to the cam, the pivot enabling each of the plurality of leversto rotate to cause the cam to move a corresponding one of the pluralityof cable clamps.
 16. The cable management system of claim 12, where eachof the plurality of cable clamps comprises: a pivot; and a body portionpivotally connected to the pivot, the body portion including: threecable guides, and four cable troughs, each cable trough, of the fourcable troughs, being to receive and retain a single cable from theportion of the cables.
 17. A system comprising: a cable management boomconnected to a top portion of a device chassis; two cable managementshelves connected to a side portion of the device chassis; and a cablemanagement arm connected to and supported by the at least two cablemanagement shelves, the cable management arm being to: retain cables,pivot through an angle to provide access to a device provided in thedevice chassis, and route the cables from the device to the cablemanagement boom, the cable management arm comprising: a cable clamp, alever that actuates the cable clamp to cause the cable clamp to move, alonger guide, and a shorter guide that communicates with the longerguide to provide a route for the cables to the cable clamp, and thecable management boom being to: gather the cables, retain the cables,and route the cables above the device chassis.
 18. The system of claim17, where the cable clamp is to receive up to four cables, and where thecable clamp retains the received cables against the shorter guide whenthe lever actuates the cable clamp to move up.
 19. The system of claim17, where the longer guide and the shorter guide route the cables to thecable clamp without exceeding minimum bend radii of the cables.
 20. Thesystem of claim 17, where the lever comprises: a cam; and a pivotattached to the cam, the pivot enabling the lever to rotate and whererotation of the lever causes the cam to move the cable clamp.
 21. Thesystem of claim 17, where the cable clamp comprises: a pivot; and a bodyportion pivotally connected to the pivot, the body portion including:three cable guides, and four cable troughs, each cable trough, of thefour cable troughs, being to receive and retain one of the cables.
 22. Asystem comprising: a cable management boom connected to a top portion ofa device chassis; two cable management shelves connected to a sideportion of the device chassis; and a cable management arm connected toand supported by the at least two cable management shelves, the cablemanagement arm being to: retain cables, pivot through an angle toprovide access to a device provided in the device chassis, and route thecables from the device to the cable management boom, the cablemanagement boom being to: gather the cables, retain the cables, androute the cables above the device chassis; a first cable managementshelf of the two cable management shelves comprises: a shelf body, apivoting bracket pivotally connected to and extending away from theshelf body, mounting rods that are received in openings provided in thedevice chassis in order to connect the first cable management shelf tothe device chassis, and a keying pin that identifies the first cablemanagement shelf and ensures that the first cable management shelf isconnected at a correct location of the device chassis, and the pivotingbracket connecting to an end of the cable management arm and enablingthe cable management arm to pivot through an angle to provide access tothe device provided in the device chassis.